Light path diagnostics
Light path diagnostics is a system of LEDs on various external and internal components of the tray that leads you to the failed component. When an error occurs, LEDs are lit on the front operator panel on the front of the tray, then on the failed component. By viewing the LEDs in a particular order, you can often identify the source of the error.
|1 Power button/LED (green)|
Off: No power supply is properly installed, or the LED itself has failed.
Flashing rapidly (4 times per second): The node is turned off and is not ready to be turned on. The power-control button is disabled. This will last approximately 5 to 10 seconds.
Flashing slowly (once per second): The node is turned off and is ready to be turned on. You can press the power-control button to turn on the node.
Lit: The node is turned on.
|Press the power button to turn the server on and off manually.|
|2 System-locator LED (blue)||This LED is used as a presence detection LED. You can use Systems Director or Lenovo XClarity Controller to light this LED remotely.||Use this LED to locate the solution among other trays visually.|
|3 System-error LED (amber)||LED on: An error has occurred.|